noun(pluralcoelomsorcoelomata)Etymology: German, from Greek koilōma cavity, from koilosDate: 1875
the usually epithelium-lined space between the body wall and the digestive tract of metazoans above the lower worms
• coelomateadjective or noun
• coelomicadjective

coelom — n. [Gr. koilos, hollow] The body cavity or space between the body wall and internal organs lined with mesoderm in many metazoan animals … Dictionary of invertebrate zoology

coelom — Body cavity characteristic of most multicellullular animals (all coelomates). Arises within the embryonic mesoderm, that is thereby subdivided into somatic mesoderm and splanchnic mesoderm, and is lined by the mesodermally derived peritoneum. May … Dictionary of molecular biology

coelom — noun A fluid filled cavity within the body of an animal. The digestive system is suspended within the cavity, which is lined by a tissue called the peritoneum. See Also: coelomate, coelomic … Wiktionary